Dyfyniad APA

Annual progress report 1987-1988: Co-ordinated project for research on water management. Agronomic Research Station.

Dyfyniad Arddull Chicago

Annual Progress Report 1987-1988: Co-ordinated Project for Research on Water Management. Chalakudy: Agronomic Research Station.

Dyfyniad MLA

Annual Progress Report 1987-1988: Co-ordinated Project for Research on Water Management. Agronomic Research Station.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.